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Eloquent subscribers with SystemDefaultsQoS missing messages

asked 2019-10-28 10:08:06 -0500

Arne Nordmann gravatar image

I started building and testing (and blooming) one of my packages for eloquent. Compared to the same code in dashing, one of the subscribers seems to miss messages now (which I can see being communicated, using ros2 topic echo). Did the SystemDefaultsQoS change between dashing and eloquent in a way that would justify this behaviour?

I am building the system_modespackage in a Lubuntu 1804 development setup (ROS 2 from sources). The subscriber in question is this one: which is missing single parameter events from events that come in bursts.

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answered 2019-10-31 09:05:24 -0500

Arne Nordmann gravatar image

I upgraded my setup to latest Eloquent and configured the ParameterEvent subscriber in question with rclcpp::ParameterEventsQoS(), which solved the issue.

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Asked: 2019-10-28 10:02:20 -0500

Seen: 154 times

Last updated: Oct 31 '19